Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1990-04-13
1991-05-14
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
73526, 310370, G01C 1956, G01P 904
Patent
active
050145541
ABSTRACT:
An angular rate sensor has a tuning fork structure composed of vibratory components. The vibratory components include piezoelectric drive and detection elements which are joined together into a tuning fork configuration, the drive and detection elements lying in respective orthogonal planes. Leads are electrically connected to the drive and detection elements, and lead terminals are electrically connected to the leads, respectively. The vibratory components are covered with a coating which is of a material having a lower elasticity than the elasticities of the vibratory components. The coating on the vibratory components effectively reduces the propagation of unwanted vibrations, thereby reducing output signal drifts.
REFERENCES:
patent: 2544646 (1951-03-01), Barnaby et al.
patent: 4628734 (1986-12-01), Watson
patent: 4671112 (1987-06-01), Kimura et al.
Ichinose Toshihiko
Manabe Takahiro
Nozu Mikio
Osada Yasuhito
Senda Hiroshi
Matsushita Electric - Industrial Co., Ltd.
Miller Craig
Williams Hezron E.
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